Improvement in odorless excavating apparatus



UNITED STATES PATENT OEEICEo COLUMBUS KIMBALL, OF BALTIMORE, MARYLAND.

IMPROVEMENT IN ODORLESS EXCAVATING APPARATUS.

Specification forming part of Letters Patent No. 157,609, dated DecemberS, 1874; application filed August 15,1814.

To all whom it may concern:

Be it known that I, COLUMBUS KIMBALL, of the city of Baltimore and Stateof Maryland, have invented certain new and useful Improvements inO'dorless Excavating Apparatus, of Which the following is aspecification and I do hereby declare that in the same is contained afull, clear, and exact description of my said invention, reference beinghad to the accompanying drawing and to the letters of reference markedthereon.

My invention relates to improvements upon machinery or apparatusemployed for the cleaning ont and conveyance of matter from sinks,cesspools, and the like, in such manner that the euvium anddeleteriousgases therefrom shall not escape to the outer air from thesaid apparatus; and my improvements specially relate to the use oremployment of an additional tank, of such construction and size as willadapt it to withstand the exterior atmospheric pressure, with theultimate receiving and conveying tank, and to the necessary means,hereinafter particularly set forth, for cooperation between the twotanks, and the connection of the auxiliary tank with thesink andair-exhausting pump.

In the description of my invention which follows due referencemust behadto the accompanying drawing, forming a part of this specification, andwhich is a side view of my invention, partly in section.

A is a tank of such character as is not calculated to withstand theexterior atmospheric pressure. B is an auxiliary tank, strongly formedwith spherical heads to enable it to sustain without injury the pressureof the atmosphere on the exterior surface thereof. The tank B isconnected to the main tank by a stop-cock, b, the key of which isunited, by the levers d d and rod e, to the key of a corresponding cock,c, located on the upper side of the tank B. The movement of the handle ffastened to the key ofthe stop-cock b gives a corresponding movement tothat of the cock c, and, as the keys are placed in an exactly reverseposition in their respective cocks, the opening of one causes theclosing of the other.

A pipe, D, connects to an air-pump of ordinary construction, by means ofwhich. the air is exhausted and a partial vacuum formed in the tankcommunicating therewith.

By the foregoing it will be seen that the air in the auxiliary tank onlyis exhausted, and consequently no exterior pressure placed upon the maintank. As soon as the tank B is filled the handle f is moved in suchdirection as to open the stop-cock b and close the cock c, thus allowingthe matter to fall from the auxiliary to the main tank. A small apertureinthe case of the cock c allows the air to enter the key and pass,through a corresponding opening in the side thereof, into the tank B toprevent the stoppage of the iiow of the matter therein by the formationof a vacuum. After the tank B has been emptied the cocks are turned totheir original positions and the tank lled as before.

The air and gases discharged from the pump can be disinfected anddeodorized by any ot' the well-known processes, and rendered perfectlyharmless and unobjectionable.

A small nozzle, g, is tted to either one of the cocks, or to the tank B,for the purpose of attaching a pipe, leading therefrom to someWater-supply. By this means the apparatus can be cleared of the adheringmatter and the pipe c cleansed, in case of stoppage, by the introductionthereto of fibrous or other clogging material.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is

The combination of the tank A, auxiliary chamber B,'c0cks b c, pipes cD, leve-rs d d', rod e,- and handle f, substantially as and for thepurposes herein specified.

In testimony whereof I have hereunto subscribed my name, in the city ofBaltimore, this 14th day of August, in the year of our Lord 1874.

COLUMBUS KIMBALL.

Witnesses WM. T. HOWARD, WM. S. MURPHY.

